If I provide every transaction on the blockchain from my bank account to the final exchange, except for the mixer where I can't show blockchain details, but I can show amount correlation and transaction clusters, would that be enough to get my funds released?
If I have a document prepared by crypto tax accountants and lawyers, would that speed up their process or at least force them to release my funds?
To be honest, no one will ever know here. Someone's procedure and details asked could be different from the others and, as well as for you. Whatever they're asking from you, you have to comply and maybe just don't add something that they aren't asking and only provide what they are asking you to confirm and verify.